我收到此错误：
DataError: (DataError) invalid input syntax for integer:
"1.50" CONTEXT: PL/pgSQL function "sp_aggregate_cart" line 82
at FOR over EXECUTE statement
'SELECT total_items, subtotal, is_shipping_required, discount_other,
is_shipping_discount FROM sp_aggregate_cart(8135)' {}
运行我的应用程序代码时。当我手动运行该查询时，一切都很好。我碰巧知道这个实例中的1.50是一个值，它通过声明为numeric（10,2）的函数中的变量传递。它不是由函数返回的，只是处理完毕。
此查询如何在应用程序代码中抛出此错误，但在pgadmin中运行正常？
好的，这是存储过程。 discount_amount是您看到错误的1.50。
CREATE TYPE buy_object_info as (object_id integer, promo_id integer, buy_quantity integer, get_quantity integer, quantity integer, discount_amount numeric(10,2));
-- Function: sp_aggregate_cart(integer)
DROP FUNCTION sp_aggregate_cart(integer);
CREATE OR REPLACE FUNCTION sp_aggregate_cart(p_cart_id integer)
RETURNS SETOF cart AS
$BODY$
DECLARE
v_total_items int;
v_subtotal numeric;
v_discount_other record;
v_items_shipping integer;
v_shipping_required boolean;
buy_object_info buy_object_info%rowtype;
buy_object_price numeric;
buy_object_orginal_subtotal numeric;
other_promo_id integer;
buy_object_query text;
other_promo_buy_quantity integer;
BEGIN
-- Get the total number of items
SELECT sum(quantity) INTO v_total_items FROM cart_object WHERE cart_id = p_cart_id;
-- Get the subtotal
SELECT sum(unit_price) INTO v_subtotal FROM (
SELECT co.cart_id, co.object_id, co.quantity,
CASE
--When buy only cart quantity = buy quantity
WHEN (p.get_quantity = 0 or p.get_quantity IS NULL) AND (p.buy_quantity > 0 OR p.buy_quantity IS NOT NULL) AND pbo.object_id = co.object_id AND p.buy_quantity = co.quantity
THEN ((cast(oa.value AS numeric(10,2)) - COALESCE(pco.discount_amount, 0)) * p.buy_quantity)
--When buy only more than the buy quantity in cart
WHEN (p.get_quantity = 0 or p.get_quantity IS NULL) AND (p.buy_quantity > 0 OR p.buy_quantity IS NOT NULL) AND pbo.object_id = co.object_id AND p.buy_quantity < co.quantity
THEN (((cast(oa.value AS numeric(10,2)) - COALESCE(pco.discount_amount, 0))) * p.buy_quantity) + ((co.quantity - p.buy_quantity) * (cast(oa.value AS numeric(10,2))))
--When buy/get
WHEN (p.get_quantity > 0 or p.get_quantity IS NOT NULL) AND (p.buy_quantity > 0 OR p.buy_quantity IS NOT NULL) AND pgo.object_id = co.object_id
THEN ((cast(oa.value AS numeric(10,2)) - COALESCE(pco.discount_amount, 0)) + ((co.quantity - 1) * cast(oa.value AS numeric(10,2))))
WHEN (p.get_quantity = 0 or p.get_quantity IS NULL) AND (p.buy_quantity = 0 OR p.buy_quantity IS NULL)
THEN ((cast(oa.value AS numeric(10,2)) - COALESCE(pco.discount_amount, 0)) * co.quantity)
ELSE
(cast(oa.value AS numeric(10,2)) * co.quantity)
END AS "unit_price"
FROM cart_object co
JOIN object_attr oa ON oa.object_id=co.object_id AND oa.attr_id=50
LEFT JOIN promo_cart_objects pco ON pco.cart_id=co.cart_id AND pco.object_id=co.object_id
LEFT JOIN promos p ON p.promo_id=pco.promotion_id
LEFT JOIN promo_get_objects pgo ON pgo.object_id = co.object_id AND pgo.promo_id = pco.promotion_id
LEFT JOIN promo_buy_objects pbo ON pbo.object_id = co.object_id AND pbo.promo_id = pco.promotion_id
WHERE co.cart_id=p_cart_id
GROUP BY co.cart_id, co.object_id, oa.value, co.quantity, p.get_quantity, p.buy_quantity, pbo.object_id, pgo.object_id, pco.discount_amount, p.promo_id
) AS a;
--Get the buyobjects that are in the cart and need to have their line item subtotal recalculated
-- :)
buy_object_query :=
'SELECT DISTINCT ON(pbo.object_id)
pbo.object_id, p.promo_id, p.buy_quantity, p.get_quantity, pco.discount_amount, co.quantity
FROM
promo_buy_objects pbo
JOIN
promos p on p.promo_id = pbo.promo_id AND p.active = TRUE AND now() BETWEEN p.start_date AND p.end_date
JOIN
promo_cart_objects pco ON pco.object_id = pbo.object_id
JOIN
cart_object co ON co.cart_id = pco.cart_id AND co.object_id = pbo.object_id
WHERE
pco.cart_id = ' || p_cart_id || '
AND
pbo.object_id IN(SELECT
po.object_id
FROM
promo_objects po
JOIN
promos p on p.promo_id = po.promotion_id AND p.active = TRUE AND now() BETWEEN p.start_date AND p.end_date
JOIN
promo_cart_objects pco ON pco.object_id = po.object_id
WHERE
pco.cart_id = ' || p_cart_id || '
UNION
SELECT
pgo.object_id
FROM
promo_get_objects pgo
JOIN
promos p on p.promo_id = pgo.promo_id AND p.active = TRUE AND now() BETWEEN p.start_date AND p.end_date
JOIN
promo_cart_objects pco ON pco.object_id = pgo.object_id JOIN cart_object co ON co.cart_id = pco.cart_id
WHERE pco.cart_id = ' || p_cart_id || ')
AND
co.quantity > p.buy_quantity';
FOR buy_object_info IN EXECUTE buy_object_query LOOP
--Get the price
SELECT cast("value" as numeric(10,2)) INTO buy_object_price FROM object_attr WHERE object_id = buy_object_info.object_id AND attr_id = 50;
--What was that original price? Redundant I know ...I might get around to optimizing this function
IF (buy_object_info.get_quantity = 0 or buy_object_info.get_quantity IS NULL) AND (buy_object_info.buy_quantity > 0 OR buy_object_info.buy_quantity IS NOT NULL) AND buy_object_info.buy_quantity = buy_object_info.quantity
THEN buy_object_orginal_subtotal := ((buy_object_price - COALESCE(buy_object_info.discount_amount, 0)) * buy_object_info.buy_quantity);
--When buy only more than the buy quantity in cart
ELSIF (buy_object_info.get_quantity = 0 or buy_object_info.get_quantity IS NULL) AND (buy_object_info.buy_quantity > 0 OR buy_object_info.buy_quantity IS NOT NULL) AND buy_object_info.buy_quantity < buy_object_info.quantity
THEN buy_object_orginal_subtotal := (((buy_object_price - COALESCE(buy_object_info.discount_amount, 0))) * buy_object_info.buy_quantity) + ((buy_object_info.quantity - buy_object_info.buy_quantity) * (buy_object_price));
--When buy/get
ELSIF (buy_object_info.get_quantity > 0 or buy_object_info.get_quantity IS NOT NULL) AND (buy_object_info.buy_quantity > 0 OR buy_object_info.buy_quantity IS NOT NULL)
THEN buy_object_orginal_subtotal := ((buy_object_price - COALESCE(buy_object_info.discount_amount, 0)) + ((buy_object_info.quantity - 1) * buy_object_price));
ELSIF (buy_object_info.get_quantity = 0 or buy_object_info.get_quantity IS NULL) AND (buy_object_info.buy_quantity = 0 OR buy_object_info.buy_quantity IS NULL)
THEN buy_object_orginal_subtotal := ((buy_object_price - COALESCE(buy_object_info.discount_amount, 0)) * buy_object_info.quantity);
ELSE
buy_object_orginal_subtotal := (cast(oa.value AS numeric(10,2)) * buy_object_info.quantity);
END IF;
--Well now we need that other promotion...this is so lame
SELECT INTO other_promo_id, other_promo_buy_quantity promo_id, buy_quantity FROM(
SELECT
p.promo_id AS promo_id, p.buy_quantity AS buy_quantity
FROM
promo_objects po
JOIN
promos p on p.promo_id = po.promotion_id AND p.active = TRUE AND now() BETWEEN p.start_date AND p.end_date
JOIN
promo_cart_objects pco ON pco.object_id = po.object_id
WHERE
pco.cart_id = p_cart_id
UNION
SELECT
p.promo_id AS promo_id, p.buy_quantity AS buy_quantity
FROM
promo_get_objects pgo
JOIN
promos p on p.promo_id = pgo.promo_id AND p.active = TRUE AND now() BETWEEN p.start_date AND p.end_date
JOIN
promo_cart_objects pco ON pco.object_id = pgo.object_id JOIN cart_object co ON co.cart_id = pco.cart_id
WHERE pco.cart_id = p_cart_id AND pco.object_id = buy_object_info.object_id) AS foo;
--Alrighty now that we have everything we need, let's perform this funky ass math
v_subtotal := v_subtotal - buy_object_orginal_subtotal;
v_subtotal := v_subtotal + (other_promo_buy_quantity * buy_object_price) + ((buy_object_info.quantity - other_promo_buy_quantity) * (buy_object_price - COALESCE(buy_object_info.discount_amount, 0)));
END LOOP;
--Get Discount Other
--SELECT COALESCE(max(discount_amount), 0), is_shipping_discount INTO v_discount_other FROM cart_promotion WHERE cart_id=p_cart_id;
SELECT COALESCE(discount_amount, 0) as discount, COALESCE(is_shipping_discount, false) as is_shipping_discount INTO v_discount_other
FROM promo_carts WHERE cart_id=p_cart_id order by discount_amount desc limit 1;
-- Determine if shipping is required
SELECT count(*) INTO v_items_shipping
FROM object o, object_attr oa, cart_object co
WHERE oa.object_id = o.object_id AND co.object_id = o.object_id
AND attr_id = 74 and cart_id = p_cart_id AND oa.value = 'true';
IF v_items_shipping > 0 THEN
v_shipping_required := True;
ELSE
v_shipping_required := False;
END IF;
-- Update the cart
UPDATE cart SET
total_items = COALESCE(v_total_items, 0),
subtotal = COALESCE(v_subtotal, 0),
is_shipping_required = v_shipping_required,
discount_other = COALESCE(v_discount_other.discount, 0),
is_shipping_discount = COALESCE(v_discount_other.is_shipping_discount, false)
WHERE id = p_cart_id;
RETURN QUERY SELECT * from cart WHERE id = p_cart_id;
END;
$BODY$
LANGUAGE 'plpgsql' VOLATILE
COST 100
ROWS 1000;
ALTER FUNCTION sp_aggregate_cart(integer) OWNER TO postgres;
答案 0 :(得分：1)
buy_object_query正在以错误的顺序选择东西。它选择我在代码buy_object_info开头创建的类型。我正在选择小数到整数